/*
 * Copyright 2019 ScyllaDB
 */

/*
 * This file is part of Scylla.
 *
 * Scylla is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Scylla is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Scylla.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace service {
namespace paxos {

class proposal {
    utils::UUID ballot;
    frozen_mutation update;
};

class promise {
    std::optional<service::paxos::proposal> accepted_proposal;
    std::optional<service::paxos::proposal> most_recent_commit;
    std::optional<std::variant<query::result, query::result_digest>> get_data_or_digest();
};

}
}
